US4573646A - Mode selection retractor - Google Patents

Mode selection retractor Download PDF

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Publication number
US4573646A
US4573646A US06/602,921 US60292184A US4573646A US 4573646 A US4573646 A US 4573646A US 60292184 A US60292184 A US 60292184A US 4573646 A US4573646 A US 4573646A
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US
United States
Prior art keywords
pawl
lever
seat belt
ratchet
engagement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/602,921
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English (en)
Inventor
Ronald A. Willey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRW Automotive Products Inc
Original Assignee
TRW Automotive Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TRW Automotive Products Inc filed Critical TRW Automotive Products Inc
Priority to US06/602,921 priority Critical patent/US4573646A/en
Assigned to FIRESTONE TIRE & RUBBER COMPANY, THE 1200 FIRESTONE PARKWAY, AKRON, OHIO 44317 A CORP OF OHIO reassignment FIRESTONE TIRE & RUBBER COMPANY, THE 1200 FIRESTONE PARKWAY, AKRON, OHIO 44317 A CORP OF OHIO ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WILLEY, RONALD A.
Assigned to TRW AUTOMOTIVE PRODUCTS, INC. A CORP OF OHIO reassignment TRW AUTOMOTIVE PRODUCTS, INC. A CORP OF OHIO ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FIRESTONE TIRE & RUBBER COMPANY
Priority to CA000477591A priority patent/CA1239134A/en
Priority to DE19853514654 priority patent/DE3514654A1/de
Priority to JP60087357A priority patent/JPH072455B2/ja
Application granted granted Critical
Publication of US4573646A publication Critical patent/US4573646A/en
Assigned to JPMORGAN CHASE BANK reassignment JPMORGAN CHASE BANK THE US GUARANTEE AND COLLATERAL AGREEMENT Assignors: TRW VEHICLE SAFETY SYSTEMS, INC.
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/415—Belt retractors, e.g. reels self-locking in an emergency with additional means allowing a permanent locking of the retractor during the wearing of the belt

Definitions

  • the present invention is directed to a new and improved seat belt retractor and more specifically to a seat belt retractor which provides a webbing controlled lever movement and piloted selection of locking modes in which a vehicle sensitive retractor is converted to an automatic locking retractor at any selected monitored amount of webbing withdrawal and the selection and monitoring is reversible by manipulation of the lever by a selected and monitored amount of retraction of webbing.
  • Seat belt retractors have been employed in aircraft and automotive safety installations for many years. Originally developed to perform a housekeeping task, the retractors began to perform a myriad of other functional duties beyond simply winding up surplus belting or webbing. The seat belt retractors were adapted to extend needed webbing and then lock at a selected extension or when emergency situations presented themselves. Slight retraction after withdrawal of webbing caused a locking pawl to engage a ratchet carried by the spool of a retractor as by removing a pawl blocking element. Thereafter, the retractor was said to be in an automatic lock mode since the pawl, while allowing retraction of webbing, would not allow further withdrawal until the pawl was physically separated from contact with the ratchet.
  • the present invention extends and improves these directions to provide a relatively simple piloted pawl means for selection of lock mode and automatic monitored disconnect of that mode to restore a prior mode.
  • the invention includes a self-actuating mode cancellation feature which is independent of selective operation of the means for selection of lock mode and restoration of the retractor to an inertially monitored or vehicle sensitive lock mode following selected retraction movement of the spool of the retractor.
  • Either mode selected causes movement of the pilot pawl and thereafter the principal pawl is driven by the webbing and monitored as it is withdrawn from the spool or as the spool senses the force.
  • An object of the present invention is to provide a selectively operable lock acting on a spool of webbing in a retractor in elimination of the need for excessive withdrawal of webbing from the spool and to secure infant child carriers, children, cargoes and persons to the vehicle seat in a lock mode which is automatically thereafter engaged to prevent any further webbing withdrawal.
  • the retractor improvement of the present invention does not impede retraction of webbing.
  • Another object is to provide an improved selectively operable lock means which can be engaged or disengaged without necessity for complete rewind in restoration of a vehicle sensitive (inertial) locking means.
  • Still another object is to achieve the foregoing objects by use of a piloted pawl structure whereby it is unnecessary to engage the principal pawl directly in achievement of the selection of an automatic locking mode.
  • the pilot pawl is mounted on the principal pawl and the driving of the pilot pawl by the withdrawal of webbing after contact of a pilot ratchet with the pilot pawl drives the principal pawl into force and lock engagement against the principal ratchet.
  • the pilot system operable in both lock modes, substantially extends the operability and sensitivity of the selection structure.
  • Another object is to provide a reversible selection means available for remote operation as by toggle-detent selection, hydraulic or pneumatic selection, the same gear-cam means used to cancel the automatic locking mode, and by electromechanical structures as, for example, a reversible solenoid means.
  • FIG. 1 is a front elevation view of a cutaway retractor tandem frame and indicating a retractor structure in accord with the present invention and best indicating the mode selection structure and the remote means locking the retractor in the vehicle sensitive mode upon inertially sensed displacement carried to the retractor.
  • FIG. 2 is a side elevation view of the retractor and frame seen in FIG. 1 and showing the lever biased away from the pilot pawl and urged to that position by the cam driven by the gear train and the pilot pawl is selectively activated by the vehicle sensitive means.
  • FIG. 3 is a partially cutaway and enlarged fragment in side elevation of the ratchet structure of the present invention as in FIG. 2 and better indicating the pilot pawl resting on the main pawl and with the mode selecting lever biased away from engagement with the pilot pawl by the gear driven cam and the detent spring.
  • FIG. 3A is a cutaway somewhat stylized side elevation view fragment indicating the engaging position of the pilot pawl toward the pilot ratchet when urged to this position by action of the vehicle sensitive linkage. Note that the lock pawl awaits being driven to engagement with the principal or lock ratchet on the spool.
  • FIG. 4 is a side elevation partial view of the retractor of the present invention and indicates the restored unlocked condition where the bias on the lever is away from contacting the pilot pawl against the pilot ratchet and the pilot pawl rests substantially on the main lock pawl.
  • FIG. 5 is a partial side elevation view of the retractor of the present unit cutaway to indicate the lifting of the principal pawl by the pilot pawl when the lever is in the locking position applying a bias against the pilot pawl to contact against the pilot ratchet and the pilot ratchet rotating with the spool has driven the principal pawl into lock position against the main ratchet of the spool.
  • FIG. 5A is a fragmental side elevation taken at the pilot pawl at the start of retraction rotation indicating the condition of the pilot pawl as being cammed away from lock engagement against the bias of the lever and indicating that rewind can always occur and that the pilot pawl remains poised to achieve the locking of the spool whenever webbing withdrawal occurs.
  • FIG. 6 is a side elevation of the spool and showing the principal and pilot ratchets and indicates that the principal pawl has been elevated into locked condition against the main ratchet.
  • the retractor of the present invention is a seat belt retractor of the vehicle sensitive type responding to sensed inertial imbalance in the vehicle in which it is used.
  • the retractor is accordingly able to pay out seat belt webbing from its spool and retract that webbing by means of a rewind motor. This action is smooth and the only time such action is interrupted is when inertial imbalance occurs. Then, the inertial actuator or sensor is displaced and the displacement causes a pilot pawl element to be moved into blocking contact against a pilot ratchet which is coaxially driven by the spool.
  • the spring applies a bias against the lever so that in extremes of lever travel, the bias urges the lever into operative contact with the pilot pawl in one direction of movement and away from contact with the pilot pawl in the other or retracting direction of movement.
  • the bias of the spring maintains contact as between the pilot pawl and the pilot ratchet so that any withdrawal thereafter of webbing from the spool tilts the pilot pawl and powers the main pawl into lock engagement with the teeth of the main ratchet thereby locking the retractor.
  • the retractor originally in the vehicle sensitive lock mode, is converted to an automatic locking mode.
  • This retractor is operable in single, dual, tandem or dual retractor installations since it acts against a lever in accord with the monitoring of withdrawal and retraction to selected points and upon energizing the lock, only a pilot pawl (free of lock stresses) is engaged.
  • the invention thus encompasses a piloted mode selection structure for seat belt retractors wherein a specific interval of withdrawal movement of the spool activates the automatic lock mode in a pilot pawl lock structure and thereafter the vehicle sensitive lock mode is restored by selected rewind or retraction movement of the spool.
  • a seat belt retractor 11 with lock mode selection construction is shown.
  • the retractor 11 is of the vehicle sensitive lock mode type in which a pendulum or other inertially responsive structure of well known mechanical, electrical, hydraulic and pneumatic means may be used.
  • the activator arm 12 is visible and will be understood to be operably movable by inertial sensing means located remotely from the retractor 11 as, for example, fixed in a portion of the frame 13 (not shown) to occupy a normally vertical position as where pendulum, weight, stem and cap are on a common vertical axis in some bracket or support. This is common in automotive installations where clearance or location requires that the retractors 11 be canted away from any regular relationship to the sensing structure.
  • the actuator arm 12 can pivot to displace the pilot pawl element 14 by engagement against the eccentric extension 15 of the pawl 14. As will be seen, such action moves the pawl 14 toward and away from the pilot ratchet 16. At engagement of the pilot pawl 14 to the teeth 17 of the pilot ratchet 16, the pilot pawl 14 allows free movement of the pilot ratchet 16 when the retractor 11 is retracting webbing but locks against the teeth 17 when webbing 18 is being withdrawn from the retractor 11.
  • the webbing 18 is wound on a spool 19 which is journalled for rotation between the upstanding spaced-apart flanges 20 of the frame 13.
  • the spool 19 is under a spring rewind bias at all times and the rewind motor 21 inside the motor housing 22 is a coiled flat spring anchored at one end to the frame 13 and at the other end it is operably connected to the shaft 23 of the spool 19 in a manner well known in the art.
  • the spacer bar 24 rigidifies the frame 13 and establishes the space interval between the flanges 20 of the frame 13.
  • the outer end of the webbing 18 is connected to safety belt hardware shown as a tongue piece 25 connectable in a buckle element or receptacle, not shown.
  • the spool 19 includes one or more ratchet flanges 26 and these (two are shown) are regarded as the principal or lock ratchets with teeth 27 lockably engageable by the principal pawl or pawl bar 28.
  • the pawl bar 28 is pivotal in the frame 13 at openings provided in the frame flanges 20. In retraction movement, the spool 19 and the axially connected ratchets 26 and 16 turn freely in accord with the rewind motor 21 and the teeth of the ratchets 26 and 16 displace the pawls 24 and 14, respectively.
  • the shaft 23 includes a pinion gear 29 which turns with the shaft 23 as the spool 19 turns.
  • the pinion 29 extends through the flange 20 of frame 13 and through a mounting plate 30 which forms a base plate supporting a monitor apparatus 31 comprising a gear train 32 operably meshed with the pinion 29 and incuding a contact extension 33 movable by the gear train 32 in an interference path with the generally radial extension 34 of the lever 35.
  • the pivotal lever 35 is acted upon by a spring 36 of the flat formed type shaped (as will be seen) to assure that the lever 35 is biased in one of two directions, toward the post 37 or upward (as seen in the FIG. 1) in lifting the pilot pawl 14.
  • the selection or positioning of the lever 35 is made by the monitored retraction and withdrawal or protraction of webbing 18 as reflected in movement of the gear train 32 and selected displacement of the lever 35.
  • This selection converts the retractor 11 from a piloted vehicle sensitive lock mode to a piloted automatic lock mode and then selectively returns the retractor 11 to the vehicle sensitive lock mode at a selected point in retraction.
  • FIG. 2 illustrates the configuration of the spring 36 under the vehicle sensitive mode of locking where inertially sensed movement, as by braking or sudden acceleration or deceleration of the vehicle in which the retractor is used, displaces the extension of the pilot pawl 14 causing vehicle sensitive locking as previously described.
  • the vehicle sensitive locking mode is better illustrated and the pilot pawl 14 can be seen out-of-contact with the pilot ratchet 16 and held out-of-contact by the cam lobe or contact extension 33 of the gear 40 which monitors the withdrawal of webbing from the spool 19 as the shaft 23 and pinion 29 move with retraction and protraction.
  • the pinion turns the change gear 41 and the integral change pinion 42 is also rotated.
  • the change pinion 42 meshes with and turns the gear 40 and its contact extension 33.
  • the extension 33 blocks movement of the pilot pawl 14 and is regarded as the stowed or shipping position. As seen in FIG.
  • the eccentric extension 15 of the pilot pawl 14 can be displaced by the inertial sensing actuator arm 12 and pivoting the pilot pawl 14 into blocking interference engagement with the teeth 17 of the pilot ratchet 16.
  • the pawl bar or principal pawl 28 remains unmoved until the spool 19 extends or protracts webbing.
  • the pilot ratchet 16 turns and the principal ratchets 26 turn correspondingly, the teeth 27 then engaging the lock bar 28 lifted by the lift of the pilot pawl 14 applied by the lost motion link floor 43 which then moves with the pilot pawl.
  • Lost motion space 44 in the FIG. 3A can be contrasted with the condition of FIG. 3 as regards the pilot pawl 14.
  • the control platform 45 of the pilot pawl 14 engages the cam or contact extension 33 of the monitor gear 40 and the platform 45 extends transversely from the principal plane of the pilot pawl 14.
  • FIG. 4 indicates unlock restoration of the pilot pawl 14 and lock bar 28 as retraction occurs in the spool 19 and the ramp portions of the teeth 17 and 27, respectively, tilt the pilot and principal pawls, respectively, to the normal rest position of the retractor 11 and under the vehicle sensitive lock mode.
  • the connective bridge 46 supporting the platform 45 of the pilot pawl 14 has been cut away as indicated.
  • the monitoring gear 40 rotates to displace the pilot pawl 14 by engagement with the contact extension 47 on the gear 40 against arm 34 of lever 35 and this action forces the lever 35 over the center point 49 on the spring 36 and the retractor 11 is thereafter in the vehicle sensitive lock mode until selected withdrawal of webbing 18 restores the automatic lock mode.
  • the point of shifting to the automatic lock mode is set on the monitoring apparatus 31 to function when webbing beyond the normal use requirements has been withdrawn.
  • Restoration of the vehicle sensitive mode is set on the monitoring apparatus 31 when substantial retraction has occurred beyond any contact with occupants or cargo.
  • the lock-up of the retractor 11 can be best appreciated in the automatic locking mode since the pilot pawl 14 was biased into contact with the pilot ratchet 16 and upon withdrawal of webbing in the direction of the force arrow causing rotation of the ratchets 16 and 26, the ratchet 16 lifts the pawl element 14 and the pawl 14 lifts the pawl bar 28 and upon engagement with the ratchet 26, the motion is stopped.
  • the condition at lock-up is illustrated.
  • the force arrow indicates that the ratchets 16 and 26 are moving in a webbing retraction direction.
  • the grip of the ratchet 26 on the pawl bar 28 is relaxed and the pawl bar 28 drops away to the floor 43 of the lost motion space or slot 44 in the pawl element 14.
  • the spring 36 by means of the lever 35, applies a continuing resilient pressure against the pilot pawl 14 urging it into contact with the pilot ratchet 16.
  • the ratchet 16 by means of its ramped teeth 17, pushes the pilot pawl 14 off, repetitively, until either the retraction restores the vehicle sensitive locking mode or until the webbing 18 is withdrawn while the condition of FIG. 5 persists and the automatic mode is effective.
  • the bridge 46 connects the pilot pawl 14 to the extension 15 for remote activation as by vehicle sensitive means not shown.
  • the gearing, the pilot pawl 14, pilot ratchet 16 and lever 35, as well as the elements 15, may be prepared by well known dimensionally precise injection molding techniques with high accuracy and low weight using selected dimensionally stable plastic material and thereby minimizing cost and extended manufacturing and assembly procedures.
  • the lock-up forces are isolated from direct impact on the plastic parts.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)
US06/602,921 1984-04-23 1984-04-23 Mode selection retractor Expired - Fee Related US4573646A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US06/602,921 US4573646A (en) 1984-04-23 1984-04-23 Mode selection retractor
CA000477591A CA1239134A (en) 1984-04-23 1985-03-27 Mode selection retractor
DE19853514654 DE3514654A1 (de) 1984-04-23 1985-04-23 Gurtaufroller fuer einen fahrzeugsicherheitsgurt
JP60087357A JPH072455B2 (ja) 1984-04-23 1985-04-23 車輌シートベルトリトラクター

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/602,921 US4573646A (en) 1984-04-23 1984-04-23 Mode selection retractor

Publications (1)

Publication Number Publication Date
US4573646A true US4573646A (en) 1986-03-04

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ID=24413309

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Application Number Title Priority Date Filing Date
US06/602,921 Expired - Fee Related US4573646A (en) 1984-04-23 1984-04-23 Mode selection retractor

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US (1) US4573646A (enrdf_load_stackoverflow)
JP (1) JPH072455B2 (enrdf_load_stackoverflow)
CA (1) CA1239134A (enrdf_load_stackoverflow)
DE (1) DE3514654A1 (enrdf_load_stackoverflow)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687156A (en) * 1985-03-29 1987-08-18 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Lock mechanism for webbing retractor
US4726539A (en) * 1985-10-16 1988-02-23 General Safety Corporation Dual mode seat belt retractor assembly
US4729524A (en) * 1986-09-26 1988-03-08 Trw Vehicle Safety Systems Limited Seat belt retractor with cinch mechanism
US4732409A (en) * 1986-12-12 1988-03-22 American Safety Equipment Corporation Dual mode passenger restraint system
US4747562A (en) * 1985-09-13 1988-05-31 Nippon Seiko Kabushiki Kaisha Retractor with both emergency and automatic locking mechanisms
US4749143A (en) * 1985-10-30 1988-06-07 Nippon Seiko Kabushiki Kaisha Retractor with both emergency and automatic locking mechanisms
US4768733A (en) * 1986-11-21 1988-09-06 Trw Vehicle Safety Systems Inc. Seat belt retractor
GB2202424A (en) * 1987-03-18 1988-09-28 Takata Corp Emergency locking seat belt retractor with automatic locking mechanism
US4809926A (en) * 1986-06-21 1989-03-07 Nippon Seiko Kabushiki Kaisha Webbing retractor
US4817885A (en) * 1986-04-24 1989-04-04 Ashimori Kogyo Kabushiki Kaisha Automatic-emergency locking retractor for seat belts
DE3911198A1 (de) * 1988-04-07 1989-10-26 Trw Vehicle Safety Systems Sicherheitsgurtaufroller
US5037038A (en) * 1990-02-09 1991-08-06 Occupant Safety Systems, Inc. Dual mode seat belt retractor
USRE33679E (en) * 1984-04-27 1991-09-03 General Safety Corporation Combination seat belt retractor mechanism
US5080299A (en) * 1990-11-09 1992-01-14 Trw Vehicle Safety Systems Ltd. Seat belt retractor
US5119999A (en) * 1990-07-13 1992-06-09 General Safety Corporation Dual mode seat belt retractor
DE4223637A1 (de) * 1991-07-17 1993-01-21 Trw Vehicle Safety Systems Rueckzieheinrichtung
US5192035A (en) * 1990-08-29 1993-03-09 Trw Vehicle Safety Systems Inc. Retractor with manual cinch
US5232177A (en) * 1990-09-17 1993-08-03 Nsk Ltd. Seatbelt retractor
US5507448A (en) * 1993-07-29 1996-04-16 Sungwoo Corporation Seat belt apparatus for automobile
WO1997010121A1 (en) * 1995-09-11 1997-03-20 Ab Volvo Cargo-retaining device
USD802844S1 (en) * 2015-04-16 2017-11-14 Fasching Salzburg Gmbh Safety belt for the seats of vehicles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61137056U (enrdf_load_stackoverflow) * 1985-02-15 1986-08-26
DE29903343U1 (de) 1999-02-24 1999-07-15 TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf Baugruppe aus einer Abstützplatte und einem an dieser angeordneten Steuerhebel für einen Gurtaufroller eines Fahrzeuginsassen-Rückhaltesystems
DE29917679U1 (de) 1999-10-07 2000-02-24 TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf Sperrmechanismus für einen Gurtaufroller
DE20111780U1 (de) 2001-07-17 2001-11-22 TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf Gurtaufroller für Fahrzeug-Sicherheitsgurt

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US3412952A (en) * 1965-09-07 1968-11-26 Sigmatex Ag Self-retracting webbing roller for safety belts
US3578260A (en) * 1968-06-27 1971-05-11 Kangel Magnet Ltd Inertia reel mechanisms
US3598336A (en) * 1970-01-07 1971-08-10 Gen Motors Corp Seatbelt retractor
US3667698A (en) * 1971-01-22 1972-06-06 Robert C Fisher Locking seat belt retractor
US3858826A (en) * 1973-08-23 1975-01-07 Gen Motors Corp Vehicle occupant restraint belt retractor
US3862726A (en) * 1973-07-16 1975-01-28 American Safety Equip Safety belt device
US3865392A (en) * 1973-05-17 1975-02-11 James W Hartway Collapsible luggage handcart
US3945586A (en) * 1974-02-04 1976-03-23 The Firestone Tire & Rubber Company Interposer retractor construction
US3960339A (en) * 1974-08-26 1976-06-01 Fisher Robert C Seat belt retractor
US4083512A (en) * 1976-04-02 1978-04-11 The Firestone Tire & Rubber Company Independent redundant clutchless retractor
US4327882A (en) * 1980-06-23 1982-05-04 Allied Corporation Seat belt retractor with manual lock up
US4402473A (en) * 1980-03-24 1983-09-06 Kabushiki-Kaisha, Tokai-Rika-Denki-Seisakusho Manually operated locking device of seat belt retractor for vehicles
US4427164A (en) * 1982-06-21 1984-01-24 The Firestone Tire & Rubber Company Cinch lock for safety belt retractors
US4428545A (en) * 1980-04-16 1984-01-31 Nsk-Warner K.K. Safety belt system having retractor equipped with manual locking mechanism
US4436255A (en) * 1981-01-20 1984-03-13 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Seatbelt retractor
US4437623A (en) * 1982-09-21 1984-03-20 American Safety Equipment Corporation Integrated weblocker with program pawl retractor

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Publication number Priority date Publication date Assignee Title
JPS547096B2 (enrdf_load_stackoverflow) * 1973-03-12 1979-04-04
JPS5512902U (enrdf_load_stackoverflow) * 1978-07-10 1980-01-26
JPS5936355U (ja) * 1982-08-31 1984-03-07 日本精工株式会社 自動ロツク式巻取装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412952A (en) * 1965-09-07 1968-11-26 Sigmatex Ag Self-retracting webbing roller for safety belts
US3578260A (en) * 1968-06-27 1971-05-11 Kangel Magnet Ltd Inertia reel mechanisms
US3598336A (en) * 1970-01-07 1971-08-10 Gen Motors Corp Seatbelt retractor
US3667698A (en) * 1971-01-22 1972-06-06 Robert C Fisher Locking seat belt retractor
US3865392A (en) * 1973-05-17 1975-02-11 James W Hartway Collapsible luggage handcart
US3862726A (en) * 1973-07-16 1975-01-28 American Safety Equip Safety belt device
US3858826A (en) * 1973-08-23 1975-01-07 Gen Motors Corp Vehicle occupant restraint belt retractor
US3945586A (en) * 1974-02-04 1976-03-23 The Firestone Tire & Rubber Company Interposer retractor construction
US3960339A (en) * 1974-08-26 1976-06-01 Fisher Robert C Seat belt retractor
US4083512A (en) * 1976-04-02 1978-04-11 The Firestone Tire & Rubber Company Independent redundant clutchless retractor
US4402473A (en) * 1980-03-24 1983-09-06 Kabushiki-Kaisha, Tokai-Rika-Denki-Seisakusho Manually operated locking device of seat belt retractor for vehicles
US4428545A (en) * 1980-04-16 1984-01-31 Nsk-Warner K.K. Safety belt system having retractor equipped with manual locking mechanism
US4327882A (en) * 1980-06-23 1982-05-04 Allied Corporation Seat belt retractor with manual lock up
US4436255A (en) * 1981-01-20 1984-03-13 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Seatbelt retractor
US4436255B1 (en) * 1981-01-20 1996-04-09 Tokai Rika Co Ltd Seatbelt retractor
US4427164A (en) * 1982-06-21 1984-01-24 The Firestone Tire & Rubber Company Cinch lock for safety belt retractors
US4437623A (en) * 1982-09-21 1984-03-20 American Safety Equipment Corporation Integrated weblocker with program pawl retractor

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE33679E (en) * 1984-04-27 1991-09-03 General Safety Corporation Combination seat belt retractor mechanism
US4687156A (en) * 1985-03-29 1987-08-18 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Lock mechanism for webbing retractor
US4747562A (en) * 1985-09-13 1988-05-31 Nippon Seiko Kabushiki Kaisha Retractor with both emergency and automatic locking mechanisms
US4726539A (en) * 1985-10-16 1988-02-23 General Safety Corporation Dual mode seat belt retractor assembly
US4767082A (en) * 1985-10-16 1988-08-30 General Safety Corporation Dual mode seat belt retractor assembly
US4749143A (en) * 1985-10-30 1988-06-07 Nippon Seiko Kabushiki Kaisha Retractor with both emergency and automatic locking mechanisms
US4817885A (en) * 1986-04-24 1989-04-04 Ashimori Kogyo Kabushiki Kaisha Automatic-emergency locking retractor for seat belts
US4809926A (en) * 1986-06-21 1989-03-07 Nippon Seiko Kabushiki Kaisha Webbing retractor
US4729524A (en) * 1986-09-26 1988-03-08 Trw Vehicle Safety Systems Limited Seat belt retractor with cinch mechanism
US4768733A (en) * 1986-11-21 1988-09-06 Trw Vehicle Safety Systems Inc. Seat belt retractor
US4732409A (en) * 1986-12-12 1988-03-22 American Safety Equipment Corporation Dual mode passenger restraint system
GB2202424B (en) * 1987-03-18 1991-01-09 Takata Corp Emergency locking seat belt retractor with automatic locking mechanism
GB2202424A (en) * 1987-03-18 1988-09-28 Takata Corp Emergency locking seat belt retractor with automatic locking mechanism
DE3911198A1 (de) * 1988-04-07 1989-10-26 Trw Vehicle Safety Systems Sicherheitsgurtaufroller
US5037038A (en) * 1990-02-09 1991-08-06 Occupant Safety Systems, Inc. Dual mode seat belt retractor
US5119999A (en) * 1990-07-13 1992-06-09 General Safety Corporation Dual mode seat belt retractor
US5192035A (en) * 1990-08-29 1993-03-09 Trw Vehicle Safety Systems Inc. Retractor with manual cinch
US5232177A (en) * 1990-09-17 1993-08-03 Nsk Ltd. Seatbelt retractor
US5080299A (en) * 1990-11-09 1992-01-14 Trw Vehicle Safety Systems Ltd. Seat belt retractor
USRE34941E (en) * 1990-11-09 1995-05-16 Trw Vehicle Safety Systems Ltd. Seat belt retractor
DE4223637A1 (de) * 1991-07-17 1993-01-21 Trw Vehicle Safety Systems Rueckzieheinrichtung
US5257754A (en) * 1991-07-17 1993-11-02 Trw Vehicle Safety Systems Inc. Retractor
US5507448A (en) * 1993-07-29 1996-04-16 Sungwoo Corporation Seat belt apparatus for automobile
WO1997010121A1 (en) * 1995-09-11 1997-03-20 Ab Volvo Cargo-retaining device
USD802844S1 (en) * 2015-04-16 2017-11-14 Fasching Salzburg Gmbh Safety belt for the seats of vehicles

Also Published As

Publication number Publication date
JPS60240548A (ja) 1985-11-29
JPH072455B2 (ja) 1995-01-18
CA1239134A (en) 1988-07-12
DE3514654A1 (de) 1985-10-31
DE3514654C2 (enrdf_load_stackoverflow) 1990-10-18

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